class CreateEvents < ActiveRecord::Migration[8.0]
  def change
    create_table :events do |t|
      t.string :event_type, null: false, index: true
      t.text :reason
      t.references :reverted_from_event, foreign_key: { to_table: :events }
      t.json :metadata
      t.binary :ip_address, limit: 16, index: true
      t.references :created_by_user, index: true, foreign_key: false
      t.datetime :created_at, null: false, index: true
    end

    add_reference :post_versions, :event, foreign_key: true, after: :original_created_before
    add_reference :tag_versions, :event, foreign_key: true, after: :deprecated_at
    add_reference :material_versions, :event, foreign_key: true
    add_reference :tag_description_versions, :event, foreign_key: true, after: :source_version_no
    add_reference :tag_group_versions, :event, foreign_key: true, after: :placements
  end
end